Swivel hook for jacks



Aug. 21, 1923. 1,465,895

R. R. DANIELS SWIVEL HOOK FOR JACKS Filed March 14. 1922 Izz /192 2% 2 B0 13. fidniezs,

.Patented Aug. 21, 1923.

' teases- ROY n. DANIELS, or INDIANAP LISJNDIANA;

SWIVEL HOOK non JACKS.

Application filed March 14,1922. Serial No. 543,685.

To all whom it may concern.

Be it known that I, ROY R. DANIELS, a

citizen of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented. new and useful Improvements in Swivel Hooks for Jacks, of which the following is a specifi-. cation.

This invention relates to means for utilizing the power of a lifting jack for pulling any kind ofguy wires attached to poles or anchors, for pulling aerial and underground. cables, in their installation or afterwards to tighten them, for pulling cables or wires through shafts, riser pipes, or conduits wherever located, and as a general substitute for a block and tackle, and the object of the invention is to provide a swivel at tachment that will allow of a cable or line being pulled upon to twist and rotate without rotating the jack and thereby changing the position of the handle.

I accomplish the above, and otherobjects which will hereinafter appear, by the mechanism illustrated in the accompanying drawing, in which Fig. 1 is a side elevation and partial section of my swivel attachment, Fig. 2, is a perspective view of a jack with my swivel attachment applied to it, and Fig. 3, shows a jack with my attachments, in the operationof tightening a guy line.

Like characters of reference indicate like parts in the several views of the drawing.

My invention consists essentially of a clevis 4, adapted to receive a jaclemember which is secured by bolt or pin 5. The clevis has an outside lug 6 to which a link 7 is swivelly attached, and to the link an eye of a hook 8 is linked in the usual manner. A pair of the above described devices is used""with a lifting jack of any usual and suitable construction, the embodiment illustrated here having a standard 9, with a' longitudinal series of holes 10, for the engagement of timing-pins 12 and 13 carried by runners 14 and 15, respectively mounted on the standard. A lever. 16 is pivoted to the runners 14 and has a pitman 17 which is pivotally connected with the runner 15 whereby the two runners may be moved rel-' ative to each other on the standard 9. The

pins 12 and 13 arepressed into the holes 10 around them, and are caused by a dog mechanism, not shown, to alternately engage the holes 10 by the operation of lever 16, to cause the runners to move longitudinally of standard 9.

The runner 15 has a foot extension 20,

with a hole through it in which the pin 5 a of the clevis 4 of one of my attachments is passed to fasten the clevis to said foot extension in the manner shown in Figs. 2 and 3. The second one of the pair of attachmentshas a clevis'embracing the end of the standard 9. The standard 9 has a hole near its end through which the pin 5 is passed to secure the clevis to the" standard, in the manner shown in the drawings and the standard is Lshape in cross section, not only to stiffen thejstandard but to provide a pair of edge-flanges on each side tolimit the arc of movement ofthe clevis on its pivot pin,

thereby holding the device'in better position ment and when not stressed. The hooks 8 are engaged in eyes of the guy line to be tightened, or with any suitable holding part of the thing to bepulled, depending upon the shape of the article to which the attachment is to be made, and other conditions.

The operation is so obvious that further description is believed to be unnecessary, it being observed that the swivel-joints allow for torsional movement of cables or the-like under pulling stress without rotating the jack. Y

Having thus fully described my invention, what I claim as new and wish to secure by Letters Patent ofthe United States, is-

1. In a device for the purposes specified, a jack-standard, eachside of which has a flange along each edge, a runner slidable on the standard 'andhaving a foot extension, power multiplying means for manually sliding the runner on the standard, a clevis for attachment to the standard, or foot between theedge-fianges on each side, a hook, and

' standard having a foot extension with a hole through it, of a clevis embracing the standard with a close swinging fit between the V and hole in the standard, clevis receiving the foot extension in like manner, a pivotpin through the elevis and the hole in the foot, each of said clevises having an outside I lug, a link for each clevis swive'lly mounted the link passes.

on the respectiveclevis lugs, and a hook for each link having an'eye through which 10 Signed at Indianapolis, Indiana, this the 4th day of March, 1922.

ROY R. DANIELS, 

